Veneer drier



Sept. 20 1927.

J. E. KocHA VENEER DRIER l 4 snee Filed May 27, 1925 Sept. 20,1927.

J. E. KOCHA VENEER DRIER Filed May 27, 1925 4 Sheets-Sheet 2 Sept. 20, 1927.

y, 1,642,928 J. E. KOCHA I VENEER DRIER Filed May 27, 19125v 4 Sheets-Sheet 3 INVENTOR W kBY 65a K WITNESS/@WM ATTORNEY sept` 20,1927. 1,642,928 J. E. KOCHA VENEER DRIER Filed May 27, 1925 4 sheets-sheet 4 Q N r` o" "f f 'ar N i? N b m c\ y I *l f.. SSI A g X Y w m me; N H i w W l N N B Qa Q www5/fac@ @X N INVEN'roR ATTORNEY Patented Sept. 2G, y19227'.

UNITED STATES JosErii EDWIN KooHA, or LINDEN, NEW JERSEY.

VENEER DEIEE.

i Application led May 27, 1825. SeralNo 33,244.

This invention relates to a device foi` drying veneer, the general object of the invention being to provide means whereby themaximum amount of material can be dried in the minimum amount of time. p i

Another object of the invention is to provide conveyor means for the veneer which is so constructed that the veneer is held flat and is prevented fromcurling up or buckling.

A further object of the invention is to provide means whereby the conveyors can be held under the proper tension atall times.

Another object of the invention is to provide a chamber through which the material is fed by the conveyors with means for heating the chamber and for passing heated air. Still another object is to'provide means for controlling the flow-of air through the chamber. n

This invention also consists in certain other features of kconstruction and inthe combination and arrangement of the several parts, to behe hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the append-`Vr Figure 4 is a view showing' one of the coils of the heater, with the `headersof the heatery in section.` v l l s Figure y5 is a section on line 5-5 of Figure.` j v Figure 6 is a section on line 6 6 of Figuref;y

A.Figure7 is a section online 7 7 of Figure '1. Y Y

Figure 8 is a section on line 8-8 of Figure 2. v

Figure 9 is a fragmentary sectional view showing a modification.

Figure 10 is avlongitudinal sectional view through the conveyor roll which is provided with the sprockets. l

Figure 11 is a similar view through one of the rolls of the upper conveyor.

Figure 12 is Figure l0.

Figure 13 is a section on line 13-13 of Figure 11.

Figure' 14 is a fragmentary longitudinal .sectionall view through the rst roll of the bottom'conveyor.

In these views, 1 indicates the foundation for the device and upon which rests the uprights 2 for thel conveyor rolls and the T- beams 3 to which the metal plates 4 are fastened, the beams and plates Vforming a casing for enclosing the device. The roll. 5 for the bottom conveyor comprises a shaft 6 which has its ends journaled in the uprights `a section on line 12-12 of and upon which are keyed a plurality of sprocket disks 7 and the brace rods 8 which pass through holes in the disks and have their ends threaded to receive the nuts 9 which engage the washersy 10, which lie on the outer faces of the end disks. The roll 5 for the other end of the lower conveyor is made of a shaft 6 which has its ends journaled in the uprights and which carries 'the disks 7 which are fastened together by the stay rods 8, and the longitudinally extending slats 11 which are connected with the disks, so that this roll 5 is of cylindrical shape and it has grooves 12 in its outer surface for receiving the conveyor chains 13 which also pass over the sprockets 7. Thus when the roll 5 is rotated, from any suitable source, the chains and roll fwill also he moved. A covering 14 of wire mesh is attached to the chains and forms the conveying medium. The upper conveyor is of less length than the lower conveyor and comprises the rolls 15 and the conveyor 16-whioh is composed of a plurality of belts which engage grooves 17 formed in the outersurface of the rolls 15.- These rolls l/are composed of disks, stay rods and slats, as is the roll 5', but a greater numbe'rof grooves are made in the rolls 15 for receiving the belts forming the yupper conveyor. If. desired,A this upper conveyor can have its conveying medium formed of wire mesh, the same as the f lower conveyor. This arrangement is shown in Figure 9, where the wire mesh is shown at 18 on the upper conveyor. The shafts at the rear end of the two conveyors are geared together by the gearsl), so'that the upper conveyor will be rotated from the lower one and these gears must be so proportioned that the two conveyors will vmove at the same fifi epeed. 'lhe lower stretch ot the upper conreror lies clone and parallel to the upper Stretch olf the lower conveyor so that when the Veneer is tiled in hetween the two idretchee, it will lie held 'lal'` between the two stretches and will he. prevented :from wrinhliug or hucldiufr under the. action of the heat.

lfhe allaite ol the 'liront rolle` 5 and lo are each carried hy the hloche 20 which are nioiuited lo ,Glide in the ,enidewaysY il and which :ire aifljurlted in the giuidewayi: lijf the iacrew el'ia'l'ts :2 connected with the liloelie ind pas-eine through the nul ineinhen; 23 in io gruidewari. "line: lay tui-nine; theseir the Airont rolle can hey adjusted lo ropcrly tighten the eourejfore. l alito pror'de idler rollel Ell; 'for the upper reaches or et elchcs4 ol the conveyors Jfor preventing); the

:ne l'roni sagging. lheee rolls: are. suitly Supported Vtroni the 'framework oil the rire.

il ehzunher il ie loi-ined in the easing' thrinugh which the contacting portions o'l the eruirerorn` rules. rllhie chandler ia Formed of the upper and lower Walls; 2:3 and the end vallo 26', the end walls ertentlingg; down part the lower wall to the baee or luindation l. The 'liront end wall sipaced frein the 'iront end ol the lower wall and a Supplemental end wall QT extends troni the front end el the lower wall to the upper part oit the 'lower eonvejvoiu Se that the front end of' chainher A is separated hy said wall 53T :trein the chaniher ll which is Yiorined hy the lower wall lfi and the `foundation l. The lower part ol the lower conveyor pasarse through the chandler ll. rlhe end walls F26 are meh provided with an ogening through which the contatilinc; poi-tiene of the conveyors; pars to enter and leave chuinlier A.

.l pluralit)` of heating' coili-V; 95B are ai ranged in the chainher and are supported therein h v the poets :29 which reet, upon [he lower wall 25, so as lo heat the air in the elianiher il.. Slean'i or other heatil'uij 'fluid if; iiitroduced to the coils hy nie-ane ol" the supplyv pipe lll the discharge pipe for the coila heine lQ hown :it 3l.

Air in circulated through the channliers A and B in' ineens olf a lan the raging 33 ol' which hace` ite, discharge 3l connected lijf the conduit ilo with a tubular member 2G in the rear end ol the chainhcr and which is provided with the diecharge ports Q7 So that the air p: ingr into the tuliular iineniher 2G :il di will para through said porte into the rear' the air will he need over and over again :zuil il will he heated in the healer 2li he- 'lore it pensee: into the lan carinii'. rl`he air ie 'further heated hy the coils; 2H in llie chainher il :and ite: llow through said zhaniher can he regulated lily the hallle platee Pil hiue'ed .e arranged in the upper and lower pai "it the cluunlie and :uljusteil hy the rode 232 which extend to `[he exterior ol the mining, so that hy nuiwingr there rods, the, ha'll'le plates: can he turned on their pivot4 .ao as to obstruct more or lef-1S the passoire oll air through the chiunhere.

The walla 25 are '[orniod with air spacer-1 within theni and each will in eonilzioilird olE the crore` healns 35i to which the outer wall Stripe Sel-i" and the inner :strips 35 are. con norte-d. Each inner eur'lfaee is covered hje a layer il'i of :relief-tos or the like.

lleat indicatin il nvane or thernioinetere` 3i and .n'ioirinre indica thief means 3S are provided for indieatiiip; the temperature and the nioieture ol the air in chainher A. and each oi* there deviene; is arranged e5 shown in Figure h where its lower end Si) is arranged in :i chandler Al() -wl'iich ie in coniniunication with the chaniher A. The reet .olf the device is outside ol the main caring' so thatit van he easily r rad lroin the exterior oll` the apparatus.

Figure showS a pair ol conveyors ai ranced over a tiret pair ol convey/ora so that this; ,iggure showt;y a donlile eonetruction and in thiny case, the T-loei-uue 3 ol the upper device ist connected with the beanie ol the lower device hy the conneetilni; plates all. The upper device is proviifled with a hottoin i2 which is tapered ahore the upper reach oli' the top conveyor olf the lower device l prefer to mal-:e the heater 29 ol a eeriea oi" coil@ Llil which have their lower ende4 con nected wiih the. inlet paseaflfes all and their outlet pasaagee l5, each Het ol these paeeaggee heini;` connected with an inlet hendel' -lli and en outlet header 4T. '.lfhue the itealn or ither heating lluid will llow throngh the coihs and thc nir passing l oni the apparato# into the lian casing will llow `ai'ouiul mid coi'ley and thus he heated and the moisture removed. therelron'i. i

l `roin the foregoing', it will he seen that :e: the mnecr .is plaeed lietreen the frontrolls olf the two conveyors, itwill he caught hetween the opina-and lower conveyors and he :lcd into the chaniher 1li where it will he suhiected to the heated air iiiaesing through the chainher and which is heated hy the ricain coiht` in the heater 25) and hy the coils 253 in #aid chainher. lfhie air Aan Contact with hoth 'laces ol the veneer tl'irough the pei.l"oiatio115 in the lower conveyor and through the Spaces lgictwecn the belts ot the upper conveyor. dried and. as it in clamped between the two conreyore, it cannot linclde or Wrinkle ine There the veneer will he der the action of the heat. The veneer will pass from the chamber thoroughly dried and the air, laden with moisture from the veneer, will be drawn by theV fan throughthe heater and returned to the chamber .A to act upon the veneer being fed into the same. By this invention, large quantities of Vveneer can be treated very quickly and with the minimum amount of fuel. y

rIhe machine is especially designed for drying wide strips'of material, such as mahogany and lother imported wood that are f' sliced and sawed in long sheets and Which must be ted through the machine across the apron so that the machine must be very wide. lhe machine is also driven from a variable speed control so that the speed of the apron can be regulated according to the amount of moisture in the wood.

It is thought from the foregoing description that the advantages and novel features oit my invention will be readily apparent.

I desire it to be .understood that I may make changes in the construction and in the combinat-ion and .arrangement of the Several parts, provided that such changes fall within the scope of the appended claims. f

What I claim is l. A veneer drying apparatus comprising a casing having a longitudinally extending chamber therein, upper and lower conveyors having endless conveying members which are perforated, the upper reach of the lower conveyor and the lower reach ofthe upper conveyor lying close together and being parallel so as to clamp between them the veneer strips, these portions of theconveying mem,- bers passing through the chamber and dividing it'into an upper part and a lower part, they lower part having its 'front end closed while the upper part has .its front end open and means tor introducing air into the rear 'end of the said chamber.

vhaving endless conveying members which are perforated, the upper vreach of the'lower conveyor and thel lower reach of the upper conveyor lying close together and being parallel so as to clamp between them the veneer strips, these'portions of the conveying members passing through the chamber and dividing it into an upper part and a lower part,- the lower part having its front end closed while the upper part has its front end open,

means for introducing air into the rear endv of the said chamber and means for heating the air. Y

3. A veneer drying apparatus comprising a Vcasing having a longitudinally extending chamber therein, upper and lower conveyors having endless conveying members which are perforated, the upper reach oit the lower conveyor and the lower reach of the upper con veyor lying close together and being parallel so as to clampA between them the veneer strips, these portions of the conveying members passing through the chamber and dividing lit into an upper part and a lower'part, the lower part havingkits front end closed while the upper part has its front end open, a blower' connected with the rear end of the chamber for introducing air therein, means for connecting the open end of the top part of the chamber with the inlet `of the blower and means for heating the air.

4. A veneer drying apparatus, comprising a casing having an upper and a lower chamber therein, upper and lower conveyors havingV their contacting stretches passing through the upper chamber, a fan having its discharge connected with one end of the upper chamber, a heater connected with theinlet of the fan and with the lower chamber, means for connecting the chambers together V'so that air will pass from the fan into the upper chamber, through the same into the lower chamber and from the lower chamber through the heater back into the fan, heating means in the upper chamber and means `for controlling the flow of a'ir through the upper chamber. I

In testimony whereof I affix my signature. y

JOSEPH EDWIN KOCHA. 

